Objective:To discuss ultrasonic diagnosis of renal angiomyolipoma(RAML).Methods:The ultrasonic instrument was adopted to conduct the planar ultrasonic and Doppler ultrasonic diagnosis analysis on 30 RAML patients in our hospital.Results:Ultrasonic representation:25 cases were single and 5 were multiple;position of pathological changes was on left kidney with 13 cases,right kidney with 13 cases,both kidneys with 4 cases.Of all the tumors,the min.size was 1.0 cm×1.5 cm and max.size was 15 cm×12 cm.As for the echo type of echo:high echo type with 24 cases,low echo type with 2 cases,combined echo type with 4 cases.5 of the 30 tumors did not display any blood flow signal inside,and the blood flow parameter RI in the tumor was below 0.6 in 20 cases,between 0.6 and 0.7 in 1 case and above 0.7 in 4 cases;PSV was less than 55 cm/s in 20 cases,and more than 55 cm/s in 5 cases.Conclusions:The combination of the planar ultrasonic and Doppler ultrasonic diagnosis can enhance the examination rate of tumor and the ultrasonography is of significant value to diagnose this kind of diseases;nevertheless,the final diagnosis should still rely on the pathological histology.